I went with 100% because I rarely visit a driving range.. maybe a few time in the winter months I'll go. I hate hitting off of the plastic mats it doesn't feel right plus, it's a PITA to get the green plastic that's burned into club soles off. My swing is fast, except for chip shots and obviously putting but, trying to swing slower just screws things up for me.
I practice on the golf course. Besides, it's actually what I'm going to playing on.. up hill / down hill lies, ball above or below the feet and all the other "quirky" lies a ball may be in. This past week I "parked" the wedges and was practicing chipping with a 9 or 8 iron, the week before that I swapped the ZL Encore w/ Motore F3 regular for the F-6 w/ Ozik Black Tie stiff... other times I'll tinker with stances, grips and other stuff like that.
To admit you wont find your ball is to come face to face with the fact that you hit a really bad shot. The eternal optimist in us says we will find the ball, so there is no need for a provisional. Proof of this is when you help a guy look for his ball that was 50 feet over the tallest tree and heading deeper. He walks along the edge of the tree line looking in the most open area between the trees and simply cant believe the ball is not lying in plain sight.
I recently read a tip somewhere to use something like a traffic cone as a putting target, rather than a cup, or a 3 foot circle. It's a "tweener" target. Quite a bit larger than the cup, quite a bit smaller than the 3 foot circle. But if you can cozy up to it regularly, you will be in like Flynn on lag putts.
And to refer to Saevel's last reply, I think part of the pressure of putting comes from being so close to the hole! You are no longer 200+ yards away, you are now 2+ yards Being that close, you might expect good things to happen! Plus, the game is played along the ground, not through the air. Thus, bugs sticking their heads up to have a look around can affect the roll. Putting is it's own unique game.